High explosive.



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DRAFZ JAMES DUNCAN THOMPSON, 0F TORONTO, ONTARIO, CANADA.

HIGH EXPLOSIVE.

No Drawing. Application filed April 3, 1916, Serial No. 88,705. Renewed November 30, 1917. Serial N 0. 204,805.

To all whom it may concern:

Be it known that I, JAMES DUNCAN THOMPSON, of the city of Toronto, in the County of York, in the Province of Ontario, Canada, have invented certain new and useful Improvements in High Explosives, of which the following is the specification.

My invention relates to improvements in high explosives, and the object of the invention is to produce an explosive which will be safe in the making, handling and using, Will not freeze, be impervious to water and in Which no noxious fumes Will be created When manufactured.

A further object is to eliminate all use of nitroglycerin.

A still further object is to make the explosive one that is easy to detonate.

In order to efi'ect these objects I have utilized, as an example, in convenient proportions the following ingredients:

Chlorate of otassium 73 lbs. Randanite decayed feldspar) 7 (Poplar) wood pulp 3 Binitro-toluol (liquid) 15 Trinitro-toluol (solid) 2 Soluble nitro-cellulose i Insoluble nitro-cellulose pulped In order to mix these ingredients together I preferably first heat in a suitable container the binitro-toluol to 120 Fahrenheit, and then add the soluble nitrocellulose to gelatinize the mixture.

I then add chlorate of potassium, then Specification of Letters Patent.

Patented Jan. 14, 1919.

randanite and then the wood pulp, then trinitrotoluol, and finally the insoluble nitro-cellulose and thoroughly mix all the ingredients.

The mixture is then in the form of a semigelatinous powder and is made up in suitable cartridges.

In this compound I advisedly use insoluble nitro-cellulose for the specific purpose of detonation as I find it is much superior to nitro-glycerin on account of being so much safer to use when combined as set forth.

I may also say that the use of a very finely divided granular insoluble nitro-cellulose as described, also multiplies the points of combustion Within the mixture so as to create perfect combustion of the powder.

What I claim as my invention is:

1. A high explosive comprising chlorate of potassium, randanite (decayed feldspar), suitable wood pulp, binitro toluol (liquid), trinitro toluol (solid) soluble nitro-cellulose, and insoluble nitro-cellulose pulped.

2. A high explosive comprising chlorate of potassium 7 3 lbs, randanite (decayed feldspar 7 lbs., Wood pulp 3 lbs, binitro toluol (liquid) 15 lbs, trinitro toluol (solid) 2 lbs, soluble nitro-cellulose 1b., and insoluble nitro-cellulose pulped 1b., substantially as described.

JAMES DUNCAN THOMPSON.

Witnesses B. Born, V. LONG.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner 0! Patents, Washington, D. 0." 

